WO2011013643A1 - 多光軸光電センサ - Google Patents
多光軸光電センサ Download PDFInfo
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- WO2011013643A1 WO2011013643A1 PCT/JP2010/062572 JP2010062572W WO2011013643A1 WO 2011013643 A1 WO2011013643 A1 WO 2011013643A1 JP 2010062572 W JP2010062572 W JP 2010062572W WO 2011013643 A1 WO2011013643 A1 WO 2011013643A1
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- frame body
- cap
- string
- frame
- rubber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
- G01V8/20—Detecting, e.g. by using light barriers using multiple transmitters or receivers
Definitions
- the present invention relates to a multi-optical axis photoelectric sensor in which a plurality of optical axes are set between a light projector and a light receiver that are arranged to face each other, and an object is detected based on a light incident state and a light shielding state of these optical axes.
- the present invention relates to a structure for tightly fixing a translucent plate that closes an opening in front of a projector and a light receiver to a frame.
- the light projector and light receiver of the multi-optical axis photoelectric sensor have a configuration in which an optical unit in which a plurality of optical elements are arranged and a control board are housed in a longitudinal housing.
- each casing is configured by closing both open end faces of a frame body whose front face and both end faces are open with caps, and closing the open front face with a translucent plate. Further, by directing the light projecting surface or light receiving surface of the optical unit in the housing to the opened front surface, the front opening portion closed by the light transmitting plate functions as a window portion through which light passes.
- this type of sensor may be placed on the spot where dust and liquid are scattered, the caps at both ends are assembled to the frame body via rubber packing. Similarly, the translucent plate is fixed so that there is no gap between the opening edge of the frame body.
- Patent Document 2 a ring-shaped rubber corresponding to the shape of the opening is provided between the opening and the translucent plate, and the translucent plate is pressed against the rubber and fixed.
- a ring-shaped rubber member is attached to the periphery of the optical unit housed in the housing, and the front surface having the window portion of the frame is attached to the optical unit. It is described that it is pressed and screwed, and a light-transmitting plate is placed thereon (see paragraphs 0013 to 0016 and FIGS. 1 to 3 of Patent Document 2).
- FIG. 14 schematically shows a main configuration relating to sealing of the opening of the frame.
- String-like rubbers 202 and 202 are interposed between both side edges of the opening on the front surface of the frame body 200 and the translucent plate 201, respectively, and plate-like rubbers 203 and 203 are respectively provided in the openings on both end surfaces. Be placed.
- the translucent plate 201 is fixed by being sandwiched between a pressing member (not shown) and the string-like rubbers 202 and 202, and the plate-like rubber 203 is fixed by being pressed against the end surface of the frame body 200 by a cap (not shown). At this time, the plate surface of the plate-like rubber 200 and the both end edges of the string-like rubber 202 are in close contact with each other, and the opening of the frame 200 can be sealed in a watertight state.
- the chemical resistance of the double-sided pressure-sensitive adhesive tape is weak, and if the chemical acts on the double-sided pressure-sensitive adhesive tape, the sealing structure of the light-transmitting plate may not be maintained. Further, even in a method using a sealing agent, there is a possibility that a gap is generated between the light transmitting plate and the frame body due to uneven application of the sealing agent. In addition, if the coating is incomplete, it is necessary to remove the applied sealing agent and repaint it, which is very laborious.
- a ring-shaped rubber having a size corresponding to the length of the frame body is used. Therefore, a ring-shaped rubber having a different size is manufactured for each of a plurality of types of frame bodies having different lengths. There is a need. Also, when ring-shaped rubber is used, it is necessary to form a mechanism that supports the rubber along the both side edges and both edges of the opening (steps, grooves, etc.). To produce a different mold is required. For this reason, cost increases and it becomes difficult to respond to a change in the length of the frame.
- the string-like rubber 202 having a considerable length can be cut into a size corresponding to the length of the frame body.
- a frame material having a considerable length with one side open is molded, and a necessary length is cut out from the frame material to form the frame body 200. It is possible to easily cope with a change in the length of the frame body 200.
- the present invention pays attention to the above problems, and it is an object of the present invention to be able to realize the fixing of the translucent plate to the frame with a simple configuration and to easily cope with the change in the size of the frame. .
- the present invention includes a housing having a frame body whose front and both end faces are open, a pair of caps that respectively close the both open end faces of the frame body, and a translucent plate that closes the open front face of the frame body
- the present invention is applied to a multi-optical axis photoelectric sensor in which the outer shape of the projector and the light receiver is formed.
- each cap that supports the light transmitting plate includes a communication portion that communicates with each support portion of the frame body, and the string is formed so as to go around the closed loop formed by each support portion of the frame body and the communication portion of each cap.
- a shaped elastic member is provided. The translucent plate is sandwiched and held between at least one fixing member provided for the frame body and each cap and a string-like elastic member.
- the string-like elastic member is disposed in the closed loop formed by the support portions on both side edges of the frame body and the communication portions of the caps on both ends, and the elastic member, the frame body, and each cap
- the translucent plate is sandwiched and held between at least one fixing member arranged on the opposite side. If it does in this way, it can respond also to the change of the length of a frame by deploying the string-like elastic member of the length which goes around the formed closed loop. Similarly, when the width of the frame is changed, it can be easily handled by changing the length of the elastic member to be used. Therefore, it is not necessary to prepare individual elastic members according to the size of the frame body, and it is possible to fix the light transmitting plate to the opening of the frame body with a simple operation.
- the string-like elastic member is formed to have a length that makes a round of a closed loop formed by the support portions of the frame body and the communication portions of the caps, and both end edges are either caps. It is bonded by an adhesive at the communicating portion.
- the degree of expansion and contraction due to the temperature change of the housing is smaller in the width direction than in the length direction, if both ends of the elastic member are joined at a location corresponding to the width direction of the housing, the frame body Even if the elastic member is pulled by a change in the shape of the longitudinal side, it is possible to prevent the influence of the pulling force from reaching the joint. Therefore, it is possible to further stabilize the fixing of the translucent plate by the string-like elastic member.
- a groove is formed in each support portion of the frame body, and a communication portion of each cap includes a pair of grooves continuous to the grooves of each support portion of the frame body. And a groove along the edge of the supported translucent plate. Further, the string-like elastic member is fitted into each groove of the frame body and each cap so as to make a round of the loop path formed by these. By fitting the string-like elastic member into the groove in this way, the elastic member can be arranged more stably.
- the front surface of the frame body is opened by leaving strip-shaped stop plates on both side edges, and is supported by a support portion via each stop plate and an elastic member.
- a bar-shaped pressing member is inserted between the two.
- a cap cover provided with a pair of claw portions at one end edge is covered with a portion of each cap where the translucent plate is supported. Clearances are provided between the rod-shaped pressing members and both end faces of the frame, and each cap cover is supported on the cap with a claw portion inserted in each gap.
- the range accommodated in the frame of the translucent plate is fixed by being pressed against the elastic member by the pressing force from the press member inserted between the translucent plate and the stop plate.
- the portion of the translucent plate supported by the cap is fixed by being pressed against the elastic member disposed on the cap by the pressing force generated by the cap cover being attached.
- the claw portions of the cap cover are respectively inserted into the gaps formed at both ends of the groove portion of the frame body, and the cap cover is attached to the cap so that the cap cover is in close contact with the cap or the frame body.
- the plate can be pressed, and the frame can be sufficiently and easily sealed.
- the translucent plate can be easily fixed to the opening of the frame body by using the string-like elastic member. Moreover, even when there are a plurality of types of frames having different sizes, it is not necessary to manufacture a special elastic member for each frame, and the cost can be reduced.
- FIG. 1 shows the appearance of a multi-optical axis photoelectric sensor to which the present invention is applied.
- the light projector 1 and the light receiver 2 of the multi-optical axis photoelectric sensor are each provided with a plurality of optical elements (the light emitting element 10 in the light projector 1 and the light receiving element 20 in the light receiver 2) and a control inside the longitudinal housing 100.
- a substrate (not shown) is accommodated.
- a cord 101 in which various signal lines are collected is drawn from the lower end of each housing 100.
- the cord 101 is further connected with a second cord 102 for extension.
- a window 103 for allowing light to pass through is formed on one side surface of each housing 100.
- the window 103 is formed by closing the opening on the front surface of the frame 3 to be described later with the light transmitting plate 6.
- the light emitting element 10 and the light receiving element 20 are arranged so as to be aligned along the longitudinal direction of the housing 100 with each light projecting surface and light receiving surface facing the window portion 103.
- the light projector 1 and the light receiver 2 are arranged to face each other at a predetermined interval so that the light emitting elements 10 and the light receiving elements 20 face each other in a one-to-one relationship. As a result, the positions and directions of these optical axes are adjusted for each combination of the light emitting element 10 and the light receiving element 20.
- the light emitting element 10 and the light receiving element 20 are each incorporated in an optical unit 105 described later together with a processing circuit.
- FIG. 2 is an exploded perspective view showing the configuration of the casing 100 of the projector 1 and the receiver 2 described above.
- casing 100 is shown facing up.
- both end surfaces of the frame 3 whose front surface and both end surfaces are open are closed by the cap 4 and the cap cover 5 respectively, and the opening on the front surface is closed by the translucent plate 6 from the inside. Is formed.
- Each cap 4 is fixed to the end edge of the frame body 3 with screws 401 to 404 via a rubber packing 9 having a shape facing the opening end surface of the frame plate 3.
- An upper surface of the cap 4 (referred to as a surface corresponding to the front surface of the casing 100) is formed lower than the frame 3, and the cap cover 5 is fixed to the upper surface by screws 501 and 502.
- the front surface of the frame 3 is opened leaving the strip-shaped stop plates 30 and 30 on both side edges.
- longitudinally-shaped support portions 31, 31 are formed over the entire upper end of the inner surface of each side plate of the frame 3.
- Standing portions 32 and 32 are formed on the side edges of the support portions 31 and 31, respectively, whereby the support portions 31 and 31 have a groove shape.
- a string-like rubber 7 (hereinafter referred to as “string-like rubber 7” or simply “rubber 7”) is accommodated in the groove of each support portion 31, and light is transmitted through the string-like rubber 7. Both side edges of the plate 6 are supported in the support portion 31, and rod-like pressing members 8 are inserted between the both side edges of the light transmitting plate 6 and the stop plate 30 to press the light transmitting plate 6. I have to.
- the length of the translucent plate 6 of this embodiment is longer than that of the frame 3, and both end portions protruding from the frame 3 are supported on the upper surface of the cap 4. Further, grooves 40, 43, 44 for fitting the string-like rubber 7 are formed on the upper surface of the cap 4, and the edge of the translucent plate 6 on the cap 4 is formed by the string-like rubber 7 fitted therein. Is supported. Further, by assembling the cap cover 5 to the cap 4, the portion protruding from the frame 3 of the translucent plate 6 is sandwiched between the cap cover 5 and the string-like rubber 7 and fixed.
- FIG. 3 shows a cross-sectional view of the structure of the housing 100 after assembling along the length direction.
- FIG. 4 is a perspective view showing a state in which the string-like rubber 7 is arranged by breaking a part of the front surface of the housing.
- FIG. 5 is a view of the open end face of the frame body 3 as viewed from the front in order to show the support state of the translucent plate 6 in the frame body 3.
- the translucent board 6 and the string-like rubber 7 are each shown as a cross section.
- 5 denotes an optical unit including an optical element, and 301 to 304 are screw holes corresponding to the screws 401 to 404.
- the grooves 43 and 44 on the upper surface of the cap 4 are respectively formed along both side edges of the upper surface, and the groove 40 has a width so as to connect the grooves 43 and 44 to the edge of the cap 4 on the side facing the frame 3. It is formed along the direction. Further, protrusions 41 and 42 are formed on both sides of the groove 40, respectively. Moreover, the both side plates of the cap 4 protrude above the upper surface, and thereby support walls 45 and 46 are formed outside the grooves 43 and 44 on both sides, respectively.
- FIG. 6 shows the relationship between the support portions 31 and 31 on both side edges of the frame 3, the grooves 40, 43 and 44, and the protrusions 41 and 42 of each cap 4.
- the length of the groove 40 of the cap 4 and the protrusions 41 and 42 at both ends thereof correspond to the opening width of the front surface of the frame 3. Therefore, when the caps 4 are assembled to the both end edges of the frame body 3, the corners of the protrusions 41 on the side close to the frame body 3 are diagonally opposed to the corners of the edge of the support part 31. Further, as shown in FIG.
- the upper surfaces of the protrusions 41 and 42 are positioned at the same height as the upper surface of the upright portion 32 of the support portion 31, and the groove depths of the grooves 40, 43, 44 and the support portion 31 are also unified.
- the groove of the support portion 31 of the frame 3 and the groove 40 of the cap 4 are in communication with each other through a part of the grooves 43 and 44.
- the string-like rubber 7 is set to a length corresponding to the loop path L formed by the above-described communication, and the grooves of the support portions 31 and 31 and the caps 4 and 4 so as to go around the loop path L. Are fitted in a series of grooves 40, 43, 44. 6 and 7, both end portions of the string-like rubber 7 are connected by an adhesive sealing agent 71 in the groove 40 of one cap 4.
- a sticky sealing agent 71 is used as an adhesive for connecting both ends of the string-like rubber 7, but the type of the adhesive is not limited to this, and a thermosetting adhesive or An ultraviolet curable adhesive may be used. Moreover, it is not necessary to connect the both ends of the string-like rubber 7 with an adhesive. For example, when the length of the string-like rubber 7 is set slightly longer than the loop path L and both ends thereof are overlapped and compressed and fitted into the groove 40, the overlapped rubbers repel each other. The adhesion between the two is enhanced. Therefore, even if it does not use an adhesive agent, the state which stuck both ends of string-like rubber 7 can be maintained, and string-like rubber 7 can be arranged in loop path L stably.
- the support walls 45 and 46 on both sides of the cap 4 assembled to the frame body 3 are positioned at a height corresponding to the lower surface of the stopper plate 30.
- FIG. 8 shows a state when the insertion of the translucent plate 6 is completed.
- the translucent plate 6 is provided so as to cover the area where the string-like rubber 7 of both caps 4 is disposed.
- the depth of the groove of the support portion 31 and the grooves 40, 43, 44 on the cap 4 side is set smaller than the diameter of the accommodated string-like rubber 7, so that the string-like rubber 7 projecting from the support portion 31 and the groove portions 40, 43, 44 contact the lower surface of the translucent plate 6 and support the translucent plate 6.
- the pressing member 8 is a flexible rod-shaped resin molded product, and is inserted one by one into the gap between each of the stop plates 30, 30 and the translucent plate 6. By inserting the pressing member 8, the translucent plate 6 is pressed against the string rubber 7.
- Each pressing member 8 is formed to be shorter than the length of the frame body 3, and as a result, a gap S is formed between both end edges of the frame body 3 and both end edges of each pressing member 8, as shown in FIG. 3.
- the cap cover 5 is formed with a pair of screw holes 53 and 54 to be screwed into the cap 4 at the front end, and a pair of claws at the lower portion of the rear end edge joined to the frame body 3. Portions 51 and 52 are projected. The interval between the claw portions 51 and 52 is set to a length corresponding to the opening width of the front surface of the frame 3. As shown in FIG. 3, a cutout portion 55 having a height corresponding to the thickness of the translucent plate 6 is formed in a range corresponding to the translucent plate 6 on the lower surface of the cap cover 5.
- the claw portions 51 and 52 are inserted into the gaps S between the pressing member 8 and the edge of the frame body 3, and the screw holes 53 and 54 and the screw holes 47 on the cap 4 side are respectively inserted. , 48 are fixed to the cap 4 and the frame 3 by fastening with screws 501 and 502.
- the portion of the translucent plate 6 that protrudes from the frame 3 is in contact with the notch 55 of the cap cover 5.
- the translucent plate 6 is pressed against the lower string-like rubber 7 by the pressure.
- the entire periphery of the bottom edge of the translucent plate 6 is supported by the string-like rubber 7, and the range accommodated in the frame body 3 is that of the cap 4 by the pressing force from the pressing member 8.
- the range protruding from the upper surface is pressed against the string rubber 7 by the pressing force from the cap cover 5. Therefore, the translucent plate 6 is sandwiched between the string rubber 7 and the pressing member by the restoring force of the string rubber 7 and the pressing force from the pressing member (the pressing member 8 and the stopper plate 30 or the cap cover 5). And become fixed. Therefore, the entire opening edge formed by each of the retaining plates 30, 30 of the frame 3 and the boundary between the cap cover 5 and the frame 3 is sealed by the single string-like rubber 7.
- the window portion 103 of the housing 100 is sealed with one string-like rubber 7 corresponding to the length of the loop path L formed by the support portion 31 and the groove portions 40, 43, and 44. Can be stopped.
- a string-like rubber having a considerable length is manufactured in advance, and can be cut into lengths according to the loop path L, so that a plurality of casings having different lengths are manufactured. Even in this case, it is not necessary to manufacture a sealing member for each housing. Similarly, when a plurality of casings having different widths are manufactured, it can be easily handled by changing the cut-out length of the string-like rubber 7.
- the frame 3, the cap 4 and the cap cover 5 of this embodiment are made of metal, they expand or contract with a degree different from that of the string-like rubber 7 with respect to a change in temperature. 7 may be pulled and the joints at both ends may be disconnected.
- the change in the shape in the width direction is small compared to the length direction of the housing 100, by providing the joint portion of the string rubber 7 in the groove 40 along the width direction of the housing 100, The force with which the joint is pulled can be suppressed. Even if the length direction of the casing 100 is greatly contracted and the rubber is pulled by adjusting the connecting portion between the groove 40 and the grooves 43 and 44 on both sides to have a curvature, the joint portion Can be prevented from moving.
- the strength of the joint portion of the string-like rubber 7 can be secured by the method as described above and there is no problem in preventing the enlargement of the joint portion and adjusting the strength, it is necessary to limit the joining position of the rubber 7 to one place. Absent. For example, as shown in FIG. 10, two rubbers 7a and 7b may be used, and the joint portions of the rubbers 7a and 7b may be formed in the grooves 40 of both caps 4 and 4, respectively.
- the front opening of the frame body 3 is sealed by inserting a bar-shaped pressing member between the translucent plate 6 and the stop plate 30 in the support portion 31 of the frame body 3.
- the stop plate 30 may be a leaf spring type, and the translucent plate 6 may be held by the pressing force of the leaf spring.
- the claw portions 51 and 52 cannot be provided on the cap cover 5, but the cap cover 5 can be stably fixed by changing the shape so that it can be screwed to an appropriate position on the side surface of the cap 4, for example. Can do.
- FIG. 11 shows the relationship between the optical unit 105 inside the housing 100 and the range in which the string-like rubber 7 is disposed.
- the optical unit 105 of this embodiment is an optical unit in which a plurality of optical modules each having a light transmitting element 10 or a light emitting element 20 integrated with a lens 106 and a processing circuit are arranged along the length direction.
- Each lens 106 is accommodated in an opening 103A on the front surface of the body 3 so as to face each other.
- the string-like rubber 7 is disposed so as to surround a range outside the optical unit 105, the light transmitting plate 6 supported by the string-like rubber 7 is fixed in the above-described manner, so that the frame 3
- the opening 103 ⁇ / b> A can be closed by the light-transmitting plate 6 to form a window 103 for light transmission / reception.
- the range in which the window portion 103 is formed is enlarged to the cap 4. It is necessary to arrange the string-like rubber 7 so as to correspond to the entire circumference of the enlarged range. For example, a range facing the optical unit 105 on the upper surface of the cap 4 is opened, and a grooved support portion and a stop plate are provided at both end edges of the opening portion. Align with the plate 30. Further, a groove is formed on the upper surface of the cap 4 so as to connect the ends of the grooves of the support portions on both sides along the width direction, and the string-like rubber 7 is arranged so as to go around the loop path of each groove. Furthermore, the translucent plate 6 is fixed to the opening by pressing the end edge of the translucent plate 6 supported by the string-like rubber 7 in the same manner as in the above embodiment.
- the string-like rubber 7 is fitted into the groove-like loop path L formed by the support portions 31, 31 provided on both side edges of the frame 3 and the grooves 40, 43, 44 on the upper surface of each cap 4.
- the loop path L does not necessarily have a groove shape.
- the support portions 31 and 31 on both side edges of the frame 3 are changed to a flat shape without a groove by removing the standing portions 32 respectively.
- the portion of the cap 4 that supports the light-transmitting plate 6 is not provided with the grooves 40, 43, and 44, but is a flat support surface having the same height as the support portion 31, and each support portion.
- the string-like rubber 7 is arranged so as to go around the support surfaces of the 31 and 31 and the caps 4 and 4.
- the light transmissive plate 6 is disposed thereon, and the light transmissive plate 6 is pressed against the string-like rubber 7 by the pressing force of the pressing members 8 and 8 and the cap covers 5 and 5 in the same manner as in the previous embodiment. Further, the arrangement state of the string-like rubber 7 is stabilized by applying a pressing force until the string-like rubber 7 is slightly crushed as shown in FIG.
- the translucent plate 6 can be firmly fixed.
- the place where the string-like rubber 7 of the frame 3 or the cap 4 is disposed is a flat shape without a groove, the shape of the frame 3 or the cap 4 can be simplified. It becomes possible to reduce the number of processes. Also in this configuration example, as shown in FIG. 13, if both ends of the string-like rubber 7 are connected by the sealing agent 71 on the support surface of one cap 4, the arrangement work of the string-like rubber 7 is facilitated. be able to. Further, by providing the joint portion of the string-like rubber 7 in the width portion of the casing 100, the arrangement of the string-like rubber 7 can be stabilized against the expansion and contraction of the casing 100.
- the frame 3 has the stopper plates 30 and 30 on both side edges and the pressing members 8 and 8 inserted below the both sides, and each cap 4 and 4 has the cap covers 5 and 5 covered on the upper surface.
- the fixing members can be integrated into one.
- a fixing member having a size corresponding to the entire front surface of the housing 100 including the caps 4 and 4 and having an opening formed at a position corresponding to the window 103 is attached to the frame 3 and the caps 4 and 4.
- the translucent plate 6 can be pressed against the string-like rubber 7 and fixed by applying a pressing force.
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Abstract
Description
この図14は、枠体の開口部の封止に関わる主要な構成を模式的に示したものである。枠体200の前面の開口部の両側縁と透光板201との間には、それぞれ紐状のゴム202,202が介装され、両端面の開口部にはそれぞれ板状ゴム203,203が配置される。透光板201は、図示しない押圧部材と紐状のゴム202,202との間に挟まれて固定され、板状ゴム203は、図示しないキャップにより枠体200の端面に押し付けて固定される。このとき、板状ゴム200の板面と紐状ゴム202の両端縁とが密着した状態になり、枠体200の開口部を水密状態に封止することができる。
この多光軸光電センサの投光器1および受光器2は、それぞれ長手形状の筐体100の内部に複数の光学素子(投光器1では発光素子10、受光器2では受光素子20である。)や制御基板(図示せず。)が収容された構成のものである。各筐体100の下端部からは、各種の信号線をまとめたコード101が引き出されている。コード101には、さらに延長用の第2のコード102が接続される。
なお、発光素子10および受光素子20は、それぞれ処理回路とともに後記する光学ユニット105に組み込まれる。
各キャップ4は、それぞれ枠板3の開口端面に対向する形状のゴムパッキン9を介して枠体3の端縁にネジ401~404により固定される。キャップ4の上面(筐体100の前面に対応する面をいう。)は、枠体3より低く形成されており、その上面にキャップカバー5がネジ501,502により固定される。
なお、図5では、透光板6および紐状ゴム7をそれぞれ断面として示す。また図5中の105は光学素子を含む光学ユニットであり、301~304は、ネジ401~404に対応するネジ穴である。
キャップ4の溝40およびその両端の突条41,42の長さは、枠体3の前面の開口幅に対応する。したがって、枠体3の両端縁にそれぞれキャップ4が組み付けられると、突条41の枠体3に近い側の角部が支持部31の端縁の角部に斜めに対向した状態になる。また、図3に示すように突条41,42の上面は支持部31の起立部32の上面と同じ高さに位置し、各溝40,43,44と支持部31の溝の深さも統一されている。これにより図6に示すように、枠体3の支持部31の溝とキャップ4の溝40とは、溝43および44の一部を介して連通した状態になる。
また、紐状ゴム7の両端部は、必ずしも接着剤により連結する必要はない。たとえば、紐状ゴム7の長さをループ経路Lより少し長めに設定し、その両端部を重ね合わせて圧縮した状態にして溝40内に嵌め込むと、重ね合わせられたゴム同士が反発することによって両者の密着力が高められる。よって、接着剤を用いなくとも、紐状ゴム7の両端部を密着させた状態を維持することができ、ループ経路L内に紐状ゴム7を安定して配備することができる。
各押さえ部材8は、枠体3の長さより短く形成され、これにより図3に示すように、枠体3の両端縁と各押さえ部材8の両端縁との間に隙間Sが生じる。
2 受光器
3 枠体
4 キャップ
5 キャップカバー
6 透光板
7 紐状ゴム
8 押さえ部材
30 止め板
31 支持部
40,43,44 溝
41,42 突条
51,52 爪部
55 切り欠き部
Claims (4)
- 前面および両端面が開放された枠体と、この枠体の開放された両端面をそれぞれ塞ぐ一対のキャップと、前記枠体の開放された前面を塞ぐ透光板とを有する筐体により、投光器および受光器の外形がそれぞれ形成される多光軸光電センサであって、
前記枠体の両側板の内面には、それぞれ前面の開口部の対応する側縁に沿って延びる長手形状の支持部が形成され、
前記透光板は、両側縁が前記枠体の各支持部にそれぞれ支持されるとともに、両端部分がそれぞれのキャップに支持されており、
各キャップの透光板を支持する部分には前記枠体の各支持部に連なる連通部が含まれ、枠体の各支持部および各キャップの連通部による閉ループを一周するように紐状の弾性部材が配備されており、
前記透光板は、前記枠体およびキャップに対して配備された少なくとも1つの固定部材と前記紐状の弾性部材との間に挟まれて保持される、多光軸光電センサ。 - 前記紐状の弾性部材は、前記枠体の各支持部および各キャップの連通部による閉ループを一周する長さに形成され、両端縁がいずれか一方のキャップの連通部において接着剤により接着されて成る、請求項1に記載された多光軸光電センサ。
- 前記枠体の各支持部にはそれぞれ溝が形成されると共に、各キャップの連通部には、前記枠体の各支持部の溝に連なる一対の溝と、支持された透光板の端縁に沿う溝とが含まれており、
前記紐状の弾性部材は、前記枠体および各キャップの各溝に、これらの溝により形成される閉ループを一周するように嵌め込まれる、請求項1または2に記載された多光軸光電センサ。 - 前記枠体の前面は、両側縁に帯状の止め板を残して開口され、各止め板と前記弾性部材を介して支持部により支持されている透光板との間に棒状の押さえ部材が挿入され、
各キャップの前記透光板が支持される部分には、一端縁に一対の爪部が設けられたキャップカバーが被せられており、
前記棒状の押さえ部材と枠体の両端面との間にはそれぞれ隙間が設けられており、各キャップカバーは各隙間にそれぞれ前記爪部を挿入した状態でキャップに支着されている、
請求項1~3のいずれかに記載された多光軸光電センサ。
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EP10804389.4A EP2461340B1 (en) | 2009-07-30 | 2010-07-27 | Multi-optical axis photoelectric sensor |
US13/254,221 US8536510B2 (en) | 2009-07-30 | 2010-07-27 | Multi-optical axis photoelectric sensor |
CN201080007540.2A CN102318027B (zh) | 2009-07-30 | 2010-07-27 | 多光轴光电传感器 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013218971A (ja) * | 2012-04-11 | 2013-10-24 | Keyence Corp | 多光軸光電センサ |
WO2016157940A1 (ja) * | 2015-03-31 | 2016-10-06 | パナソニック デバイスSunx 株式会社 | 多光軸光電センサ |
EP3502752A1 (en) | 2017-12-22 | 2019-06-26 | Omron Corporation | Multi-optical axis photoelectric sensor |
WO2019171888A1 (ja) * | 2018-03-07 | 2019-09-12 | オムロン株式会社 | 多光軸光電センサ |
JP2019160426A (ja) * | 2018-03-07 | 2019-09-19 | オムロン株式会社 | 多光軸光電センサ |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201329425A (zh) * | 2012-01-10 | 2013-07-16 | Askey Technology Jiangsu Ltd | 指示燈檢測系統 |
JP2018010790A (ja) * | 2016-07-13 | 2018-01-18 | オムロン株式会社 | 多光軸光電センサ |
JP6763222B2 (ja) | 2016-07-13 | 2020-09-30 | オムロン株式会社 | 多光軸光電センサ |
JP2018010788A (ja) * | 2016-07-13 | 2018-01-18 | オムロン株式会社 | 多光軸光電センサ |
KR20200114345A (ko) * | 2019-03-28 | 2020-10-07 | 주식회사 오토닉스 | 센서 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1074432A (ja) * | 1996-09-02 | 1998-03-17 | Omron Corp | 多光軸光電スイッチ用収納ケース |
JP2000251595A (ja) | 1999-02-25 | 2000-09-14 | Sunx Ltd | 多光軸光電スイッチ |
JP2002075149A (ja) | 2000-09-05 | 2002-03-15 | Omron Corp | 多光軸光電センサ |
JP2002124170A (ja) * | 2000-08-11 | 2002-04-26 | Omron Corp | 光カーテン創成装置 |
JP2006107797A (ja) * | 2004-09-30 | 2006-04-20 | Omron Corp | 多光軸光電センサ |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4322561B2 (ja) * | 2003-06-06 | 2009-09-02 | サンクス株式会社 | 多光軸光電スイッチ及びその取付構造並びに取付具 |
JP4354322B2 (ja) * | 2004-03-29 | 2009-10-28 | 株式会社キーエンス | 光電センサー、投光装置及び光電センサー用の回帰反射型ミラー |
DE102004046725B4 (de) * | 2004-09-25 | 2007-08-09 | Sick Ag | Gehäuse für ein Lichtgitter |
CN100446146C (zh) * | 2004-09-30 | 2008-12-24 | 欧姆龙株式会社 | 多光轴光电传感器 |
JP4628402B2 (ja) * | 2007-06-29 | 2011-02-09 | 株式会社キーエンス | 光電センサ及び光電センサ用発光装置 |
-
2010
- 2010-07-27 WO PCT/JP2010/062572 patent/WO2011013643A1/ja active Application Filing
- 2010-07-27 US US13/254,221 patent/US8536510B2/en active Active
- 2010-07-27 CN CN201080007540.2A patent/CN102318027B/zh active Active
- 2010-07-27 JP JP2011524779A patent/JP5141825B2/ja active Active
- 2010-07-27 EP EP10804389.4A patent/EP2461340B1/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1074432A (ja) * | 1996-09-02 | 1998-03-17 | Omron Corp | 多光軸光電スイッチ用収納ケース |
JP2000251595A (ja) | 1999-02-25 | 2000-09-14 | Sunx Ltd | 多光軸光電スイッチ |
JP2002124170A (ja) * | 2000-08-11 | 2002-04-26 | Omron Corp | 光カーテン創成装置 |
JP2002075149A (ja) | 2000-09-05 | 2002-03-15 | Omron Corp | 多光軸光電センサ |
JP2006107797A (ja) * | 2004-09-30 | 2006-04-20 | Omron Corp | 多光軸光電センサ |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013218971A (ja) * | 2012-04-11 | 2013-10-24 | Keyence Corp | 多光軸光電センサ |
WO2016157940A1 (ja) * | 2015-03-31 | 2016-10-06 | パナソニック デバイスSunx 株式会社 | 多光軸光電センサ |
JP2016195005A (ja) * | 2015-03-31 | 2016-11-17 | パナソニック デバイスSunx株式会社 | 多光軸光電センサ |
US10309827B2 (en) | 2015-03-31 | 2019-06-04 | Panasonic Industrial Devices Sunx Co., Ltd. | Multi-optical axis photoelectric sensor comprising a light transmissive plate disposed to straddle the body housing and a pair of caps |
KR102102199B1 (ko) * | 2017-12-22 | 2020-04-20 | 오므론 가부시키가이샤 | 다광축 광전 센서 |
EP3502752A1 (en) | 2017-12-22 | 2019-06-26 | Omron Corporation | Multi-optical axis photoelectric sensor |
KR20190076833A (ko) | 2017-12-22 | 2019-07-02 | 오므론 가부시키가이샤 | 다광축 광전 센서 |
US10739493B2 (en) | 2017-12-22 | 2020-08-11 | Omron Corporation | Multi-optical axis photoelectric sensor |
WO2019171888A1 (ja) * | 2018-03-07 | 2019-09-12 | オムロン株式会社 | 多光軸光電センサ |
CN111052290A (zh) * | 2018-03-07 | 2020-04-21 | 欧姆龙株式会社 | 多光轴光电传感器 |
JP2019160426A (ja) * | 2018-03-07 | 2019-09-19 | オムロン株式会社 | 多光軸光電センサ |
US11041975B2 (en) | 2018-03-07 | 2021-06-22 | Omron Corporation | Multiple-optical-axis photoelectric sensor |
US11175433B2 (en) | 2018-03-07 | 2021-11-16 | Omron Corporation | Multi optical axis sensor |
CN111052290B (zh) * | 2018-03-07 | 2022-04-08 | 欧姆龙株式会社 | 多光轴光电传感器 |
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US20120112049A1 (en) | 2012-05-10 |
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